Membership Plugin for a very simple membership site.

Hi,

I am looking for a little bit of advice. I have never created a membership site before and I am not 100% sure that the Membership plugin is ideal for me.

Let me explain my situation.

I have a VIP Buying Group (they get a discounted rate on furnaces since they are buying as a group). What that want is the ability to login to Reliable Home using their unique Family Code (each member has their own code...about 400 members). Once logged in they would be able to download their VIP Buying Group Package.

We may add more to this in the future but this is all we need right now. I just need to set up a way to protect a little bit of content that they can only access if they use their proper family code.

Is this something that could be done with the Membership plugin or is there a better way to do this?

Thanks!
Nathan